SELECTION
GUIDE FOR TEFC MOTOR SILENCERS
Selection and
sizing of the correct silencer for any particular TEFC motor is simple; the
primary elements to be considered are:
1. Air
flow (CFM) requirements
2. Motor
air inlet diameter
3. Motor
HP
4. Space
restrictions around the motor
5. Noise
levels at inlet, exhaust, and frame
The chart
below will help you in the selection of the correct VA Series silencer for
your particular motor. If you have any questions, our technical staff will
work with you to confirm the correct size for your specific application.
|
Airflow |
Airflow |
|
|
|
|
(CFM) |
(CFM) |
Motor
Inlet |
Motor |
Silencer |
|
@ 0.50"
W.G. |
@ 0.75"
W.G. |
Size |
HP |
Model |
|
|
|
|
|
|
|
1,420 |
1,650 |
up to
12" |
15-30
|
VA
77-2S |
|
2,600 |
2,900 |
up to
14" |
25-75
|
VA
88-2S |
|
2,900 |
3,350 |
up to
16" |
40-75
|
VA
99-2S |
|
4,900 |
5,600 |
up to
18" |
75-100
|
VA
1010-2S |
|
6,500 |
7,400 |
up to
21" |
100-250
|
VA
1212-2S |
|
7,900 |
8,200 |
up to
24" |
125-300
|
VA
1414-2S |
|
9,400 |
10,300 |
up to
24" |
125-450
|
VA
1420-2S |
|
12,000 |
13,800 |
up to
30" |
500-800
|
VA
1624-2S |
|
15,000 |
16,100 |
up to
36" |
800 +
|
VA
1826-2S |
Simple
Installation
There are two
methods of installation:
1. Use of
an acoustically treated adapter fitting.
2. Direct
mounting with required air inlet opening and bolt holes built into the
silencer base.
Either type
of installation may be offset to one side to avoid moving electrical
controls, conduits or structural supports.
